Oscillating engine.



P. LLCHOWE. OSCILLA'TING ENGINE.

APPLlcATloN FILED :um: 2. 199,8.

Patented June 13, 1916.

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P. L.l CROWE.

OSCILLATING ENGINE.

- APPLlcAloN FILED JUNE 2. isos.

Patented June 13, 1916.

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PAUL L. CRCWE, OF JERSEY CITY, NEYWr JERSEY.

osciLnATiNG ENGINE.

License.

To aZZ whom t may concern Be it known that I, PAUL L. CRowE, a citizen of the United States, and resident of Jersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Oscillating Engines, of which the following is a specication.

My invention relates to oscillating engines, and has for its object the production of an efficient automatic cut-off for regulating and controlling the speed of an engine, whereby the engine will be prevented from exceeding a predetermined speed limit.

My invention also consists of certain novel constructions, combination and arrangement of parts which 'will be hereinafter fully described, illustrated and pointed out in the claims.

ln the accompanying drawings :Figure 1 is a side elevation of a stationary engine, the cylinder being removed and the journal portion and valve being shown in section taken on line X-X, of Fig. 2. Fig. 2 is a vertical section taken online YY, of Fig. 1, the cylinder being shown in side elevation. Fig. 3 is a rear view of the cylinder support detached` from the engine. Fig. 4 is an end view of the inner reversible valve. Fig. 5 is a cross-sectional view on line Z-Z, of Fig. 3, of the cylinder support, looking in the direction of the arrow. Fig. 6 is a crosssection of the cylinder support and reverse valve. Fig. 7 is a top view of the reverse valve. Fig. 8 is a bottom view of the reverse valve. Fig. 9 is a sectional elevation of the cylinder support on line A-A, Fig. 13. Fig. 10 is a cross-section on line B-B, Fig. 13. Fig. 11 is an end view of the support for the cylinder, the grab hooks, springs, and certain other parts being shown in section. Fig. 12 is atop plan view of the cylinder support and mechanism carried thereby. Fig. 13 is a vertical section taken on line C-C, of Fig. 11, the cylinder being shown partly in elevation, and certain otherl parts added.

By referring to the drawings it will be seen that 1 designates the cylinder which is journaled on the support 2. This support 2 is provided with a cone-shaped journal portion 3 upon which the cylinder 1 fits. The cylinder 1 is provided with a laterally extending portion 4, which lits over the journal portion 3 and is engaged at its outer end by means of an adjustable externally Specication of Letters Patent.

Application 'filed June 2, 1908.

Patented J une 13, 1916.. serial No. 436,186.

threaded bushing 5. The laterally extending portion 4 of the cylinder 1 is provided with two diametrically opposite ports 6 as is clearly illustrated in Figs. 2 and 10. It should be understood that the adjustable bushing 5 bears against the shoulder 7 formed on the inner end of the journal portion 3, and that owing to the fact that the journal portion 3 is beveled or cone-shaped as stated, the cylinder will fit tightly upon this journal portion 3. The bushing 5 is split upon which is adapted to be threaded the bushing 10, shown in Figs. 2 and 13, for holding the adjustable bushing 5 in a locked position. lt should be understood that the bushings 5 and 10 may be adjusted from time to time as wear between the journal portion 3 and cylinder 1 requires.

The journal portion 3 is provided with two pairs of ports 8 and 9, shown in Fig. 13, arranged diametrically opposite to each other, and these ports 3' and 9 are adapted to alternately register with the .ports 6 formed in the cylinder 1 as'tlie cylinder 1 is oscillated, whereby the ports 6 will take inpressure when registering with the ports 8 and exhaust pressure when registering with the ports 9. The support 1v is provided with a centrally located socket 11 within which the reverse valve 12 is mounted. This valve 12 is provided with one exhaust port 13 and two inlet ports 14 upon one side, and two exhaust ports 15 and one inlet port 16 diametrically opposite thereto. The ports 13 `and 14 are adapted to alternately register with one of the ports 6 for controlling the admission and exhaust to and from the cylinder 1 and the upper end of the cylinder 1 and the ports 15 and 16 are adapted to alternately register with the diametrically opposite port 6 for controlling the admission and exhaust to and from the opposite end -of the cylinder 1.

As is shown in Fig. 13, the'iiiner face of the journalv portion 3 is inclined sofas to form an efficient seat for the valve 12. The

rvalve 12 is provided with a concave groove 17 which vis formed around the outer face of `the valve 12 flor conveying the exhaust to port 20, the supply passes through the Y groove 21 in the equalizing piston head 24 and from the groove 21 through the ports 13 and 15. The pressure from the supply in ports 13 and 15 passes through the passages 22 which communicate with the inner end of the pocket 23. This passage 22 forms a direct connection between the 'ports 13 and 15 and the pocket 23.. 1t will, therefore, be seen that the plunger head 24 will be forced outwardly against the pressure of the spring 25 when pressure passes into the pocket 23 as just described. The head 24 is carried by the rod 2G, which rod is slidably mounted through the hand screw 27 which is speoiiically illustrated in Fig. 13. A collar 28 is threaded in the outer end of the pocket. 23, and the hand screw 27 is threaded in the collar 28 as illustratedv in Fig. 13. The hand screw 27 Vis provided with a plurality of sockets 29 for receiving awrench or other means to assist in turning the hand screw 27. The spring 25 is interposed between the head 24 and the screw 27 and normally forces the head 24y inwardly. Should the pressure become too great within the inletv ports, the plunger head 24 will be forced rearwardly against the tension of the spring 25 and cause the head 24 to gradu ally close the inlet ports until the pressure falls below the pressure exerted by the spring 25. An automatic cut-01T has, therefore, been produced for controlling the operation of the engine according to the amount of pressure produced. The plunger rod 26 extends through the hand screw 27 and en gages the depending end 29 of the lever 30 as illustrated in Fig. 13. As the plunger rod or spindle 26. moves outwardly the depending end 29 will be raised.

WV'rist plates 31 are pivotally supported upon the rear face of the support 2 by means of pivot pins 32, so as to allow the wrist plates to freely oscillate thereon. A projecting arm 33 is carried by the cylinder 1 Vas shown in Fig. 13, and is adapted to swing therewith. This arm 3.3 `carries-a pin 34 uponwhich is mounted a friction roller 35, which roller 35 is adapted to engage the upwardly extendingV arms 36 of the wrist plates 31 for swinging the wrist plates 31. The wrist plates 31 support grab hooks 37, which grab hooks 37 project over the cylinder support 3 in order that the upwardly eX- tending arms 36 may engage the roller 3.5. Springs 38 are carried by the pivot pins 32,

. and have their opposite ends. engaging the upper faces of the grab hooks 37.

The grab hooks 37 are pivoted upon the f wrist plates 31 so as to insure-a contact with the lever 30 when the lever is operated by the rod 26. As the cylinder 1 oscillates, the

grab hooks 37 will engage the projection 39 carried by the reverse valve 12 shown in Fig. 11. This oscillation opens the ports 14 and lofthe reverse valves to ports 8 or 9 according to the direction of operation of the engine. 1t should be understood that when the ports 14 and 16 communicate with one. of the ports 8, the engine will operate in one diretion, lbut when the ports 14 or 16 communicate with one of the ports 9, the engine will operate in the opposite direction. The springs 38 are bowed as shown in Fig. 11, and these springs 38 are adapted to return the grab hooks to their normal position.

1t should be understood that, the tension of the spring 25 may be regulated by means of the adjustment of the hand screw 27. When the. engine. is. running up to the Speed at which the spring 25. is set, or adjust-ed, the. said spring will be compressed by the plunger head 24 which will reduce the. preS.- sure in the ports 14 and 1,6 in proportion to the. load carried by the. engine` When the piston head 2.5. is moved by the pressure in ports ,14 or 16, the lever 3.0 cornes in Contact with the grab hooks 37 and disengages the grab hooks frein the steel bleek projection 3.9 carried by the reverse valve l2- At; the Same -tirne the other or opposite disengaged hoolr 37 and spring 38 returns the reverse valve l2 to itsoriginal position by striking against the lower part of the first mentioned hook 3.7 at the point 40. When the engine is to ble reversed, a, lever is inserted in the eye '4l of the reverse valve l2.. The grab, hooks 3.7 are then held clear of the blocksr or projections 39, which is accomplished by lifting the lever 3() and this bringe the block 4:2 in the pOS-.ltiQIl previously occupied by the block 39 as illustrated in Fig. 1l. The engine iS, then reversedv has the. ports 14 and 16 communicating with the ports 9.

The object 0f the valve .gear is to cut oil i the pressure at any part of the stroke of the engine at the outer edgeoi the. ports 14 and 16 and the inner edge of the port 8 er- 9 es the. case may be.

The piston head. 2,4 Y through the plunger rod 26 controls the Speed 0f the engine at the various speeds at top 44 and an open side 45 as illustrated in Figs. land The crank shaft 4.6. is j-eurnaled upon the frame 43 and engages the pitman rod 47 as is illustrated in Fig. 2,

What I claim ist* `1.. In an oscillating engine, a support, a' cylinder attached to said support, said support having a contracted end, arever-se valve positioned in said contracted end of said support, means for holding said valve in place, said reversevvalve provided With ports formed therein, said support provided with ports formed therein, an equalizing piston supported and operating Within said reverse valve, said piston provided With ports formed in the rear portion thereof', a spring encircling said piston. and adapted to actuate said piston, a hand screiv adapted to hold said spring in position, and means for holding said hand screw in an adjusted position.

2. An oscillating engine, a support, an oscillating cylinder journaled on said support, means for holding said cylinder and support together, a reverse valve, said support and reverse valve provided With ports formed therein, said reverse valve supported Within said support, an oscillating piston, an equalizing piston having a spindle, said piston supported and operating Within said reverse valve, a spring encircling said spindle of said piston, a hand screw sul'iported on said reverse valve, a lever fulcruined on said supporting cylinder, Wrist plates mounted on said supporting cylinder, pins mounted on said Wrist plates, projections on said cylinder, pins mounted on said projections, rollers on said pins, grab hooks pivotally mounted on said Wrist plates, springs engaging said grab hooks and said wrist plates, projections on said reverse valve for engaging said grab hooks, and means -lor reversing said reverse valve and engine.

3. An oscillating englne, a support, a cylinder carried by said support, a reverse valve positioned in said support, means for holding said valve in place, said reverse valve provided With ports, said support provided ivith ports, an equalizing piston operating Within said reverse valve, said piston provided with ports formed in the rear portion thereof, tension means engaging said piston and adapted to actuate the same, adjustable means for holding said tension means in position, and meansfor holding said adjustable means in position.

et. An oscillating engine comprising a support7 a cylinder mounted to oscillate thereon, a reverse valve mounted within said support, a cut-oit piston carried by said reverse valve, and tension means engaging said cut. Ott piston.

5. An oscillating engine comprising a support, an oscillating cylinder mounted there on, said support and cylinder provided with ports, a reverse valve coperating with said ports, a cut-oli piston carried by said reverse valve, and means for regulating the tension of said cut-oli piston.

Signed at Jersey City, in the county of Hudson and State of New Jersey, this first day of June, A. D. 1908.

PAUL L. CROl/VE.

Witnesses:

W. P. BURDETT, M. F. CARROLL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

